What is hypoxic drive?

Hypoxic drive is a term used to describe a backup breathing system in the human body that takes over when the typical system fails. The typical respiratory system is driven by a desire to breathe based on carbon dioxide levels in the body. The hypoxic drive, on the other hand, is stimulated by a decrease in oxygen levels, which is known as hypoxemia.

The hypoxic drive is not the primary respiratory system but acts as a backup when the typical system fails. It is commonly found in individuals with chronic obstructive pulmonary disease (COPD) who have a decreased sensitivity to carbon dioxide levels. In these individuals, low oxygen levels stimulate breathing, whereas high levels of carbon dioxide fail to stimulate breathing as effectively.

Some medical treatments, such as supplemental oxygen therapy, can suppress the hypoxic drive, making it important for healthcare providers to closely monitor individuals with chronic respiratory conditions. When the hypoxic drive is suppressed, it can lead to respiratory depression and even respiratory arrest.

Overall, understanding the hypoxic drive is critical in the management of individuals with chronic respiratory conditions, providing accurate diagnosis and treatment.